body {
	max-width: 27rem;
	margin: 0 auto;
}
.page, .page-group {
	background: #efefef;
}
.bar-nav ~ .content {
	top:0rem;
}
.content {
	bottom: 2.4rem;
}

.margin-top {
	margin-top: 0.25rem;
}
.margin-bottom {
	margin-bottom: 0.25rem;
}
.margin-top-bottom {
	margin: 0.25rem 0;
}

.border-top {
	border-top: 0.05rem solid #EFEFEF;
}
.border-bottom {
	border-bottom: 0.05rem solid #EFEFEF;
}
.margin-footer {
	margin-bottom: 2.65rem;
}

/*标题栏去除底部边框*/
.bar:after {
	content:none;
}
